I think I remember seeing these 40" electric ranges in the mid-late 60's Sears catalog, so it's likely a Kenmore, or made by the same mfr., probably Roper. Unusual in that the controls are at the side. I bet lots of burned arms using this, especially if no room to stand to right to operate knobs. Speaking of Premier, my sister had a gas model (Avocado) in an old mobile home she lived in right after her first marriage.